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BS EN 61784-3-12:2010

BS EN 61784-3-12:2010

$227.44

Industrial communication networks. Profiles – Functional safety fieldbuses. Additional specifications for CPF 12

Published By Publication Date Number of Pages
BSI 2010 102
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IEC 61784-3-12:2010 specifies a safety communication layer (services and protocol) based on CPF 12 of IEC 61784-2 and IEC 61158 Type 12. It identifies the principles for functional safety communications defined in IEC 61784-3 that are relevant for this safety communication layer. This bilingual version (2012-02) corresponds to the monolingual English version, published in 2010-06.

PDF Catalog

PDF Pages PDF Title
7 CONTENTS
11 0 Introduction
0.1 General
Figures
Figure 1 – Relationships of IEC 61784-3 with other standards (machinery)
12 Figure 2 – Relationships of IEC 61784-3 with other standards (process)
13 0.2 Patent declaration
14 1 Scope
2 Normative references
15 3 Terms, definitions, symbols, abbreviated terms and conventions
3.1 Terms and definitions
20 3.2 Symbols and abbreviated terms
21 3.3 Conventions
4 Overview of FSCP 12/1 (Safety-over-EtherCAT™)
Tables
Table 1 – State machine description elements
22 Figure 3 – Basic FSCP 12/1 system
23 5 General
5.1 External document providing specifications for the profile
5.2 Safety functional requirements
24 5.3 Safety measures
5.4 Safety communication layer structure
Figure 4 – FSCP 12/1 software architecture
Table 2 – Communication errors and detection measures
25 5.5 Relationships with FAL (and DLL, PhL)
6 Safety communication layer services
6.1 FSoE Connection
6.2 FSoE Cycle
26 6.3 FSoE services
Figure 5 – FSoE Cycle
Figure 6 – FSCP 12/1 communication structure
27 7 Safety communication layer protocol
7.1 Safety PDU format
Figure 7 – Safety PDU for CPF 12 embedded in Type 12 PDU
Table 3 – General Safety PDU
28 Table 4 – Shortest Safety PDU
Table 5 – Safety PDU command
29 Table 6 – CRC_0 calculation sequence
Table 7 – CRC_i calculation sequence (i>0)
30 Table 8 – Example for CRC_0 inheritance
31 Table 9 – Example for 4 octets of safety data with interchanging of octets 1-4 with 5-8
32 7.2 FSCP 12/1 communication procedure
33 Figure 8 – FSCP 12/1 node states
34 Table 10 – Safety Master PDU for 4 octets of safety data with command = Reset after restart (reset connection) or error
Table 11 – Safety Slave PDU for 4 octets of safety data with command = Reset for acknowledging a Reset command from the FSoE Master
35 Table 12 – Safety Slave PDU for 4 octets of safety data with command = Reset after restart (reset connection) or error
Table 13 – Safety Master PDU for 4 octets of safety data with command = Session
36 Table 14 – Safety Slave PDU for 4 octets of safety data with command = Session
Table 15 – Safety data transferred in the connection state
37 Table 16 – Safety Master PDU for 4 octets of safety data in Connection state
Table 17 – Safety Slave PDU for 4 octets of safety data in Connection state
38 Table 18 – Safety data transferred in the parameter state
Table 19 – First Safety Master PDU for 4 octets of safety data in parameter state
39 Table 20 – First Safety Slave PDU for 4 octets of safety data in parameter state
Table 21 – Second Safety Master PDU for 4 octets of safety data in parameter state
40 Table 22 – Second Safety Slave PDU for 4 octets of safety data in parameter state
Table 23 – Safety Master PDU for 4 octets of ProcessData in data state
41 Table 24 – Safety Slave PDU for 4 octets of ProcessData in data state
Table 25 – Safety Master PDU for 4 octets of fail-safe data in data state
42 7.3 Reaction on communication errors
Table 26 – Safety Slave PDU for 4 octets of fail-safe data in data state
Table 27 – FSoE communication error
43 7.4 State table for FSoE Master
Table 28 – FSoE communication error codes
Table 29 – States of the FSoE Master
44 Figure 9 – State diagram for FSoE Master
45 Table 30 – Events in the FSoE Master state table
Table 31 – Functions in the FSoE Master state table
46 Table 32 – Variables in the FSoE Master state table
Table 33 – Macros in the FSoE Master state table
61 7.5 State table for FSoE Slave
Table 34 – States of the FSoE Slave
62 Figure 10 – State diagram for FSoE Slave
63 Table 35 – Events in the FSoE Slave state table
Table 36 – Functions in the FSoE Slave state table
64 Table 37 – Variables in the FSoE Slave state table
Table 38 – Macros in the FSoE Slave state table
84 8 Safety communication layer management
8.1 FSCP 12/1 parameter handling
8.2 FSoE communication parameters
85 9 System requirements
9.1 Indicators and switches
Table 39 – FSoE Communication parameters
Table 40 – Indicator States
86 Figure 11 – Indicator flash rates
Table 41 – FSoE STATUS indicator states
87 9.2 Installation guidelines
9.3 Safety function response time
Figure 12 – Components of a safety function
88 Figure 13 – Calculation of the FSoE Watchdog times for input and output connections
Table 42 – Definition of times
89 Figure 14 – Calculation of the worst case safety function response time
90 9.4 Duration of demands
9.5 Constraints for calculation of system characteristics
91 Figure 15 – Safety PDU embedded in standard PDU
92 9.6 Maintenance
9.7 Safety manual
10 Assessment
Figure 16 – Residual error rate for 8/16/24 bit safety data and up to 12 144 bit standard data
93 Annex A (informative) Additional information for functional safety communication profiles of CPF 12
98 Annex B (informative) Information for assessment of the functional safety communication profiles of CPF 12
99 Bibliography

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BS EN 61784-3-12:2010
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